Home / 5,383.68-7,427.28-3,394.20

Finding the Fourth Proportional to 5,383.68, 7,427.28 and 3,394.20

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Solution

The fourth proportional to 5,383.68, 7,427.28 and 3,394.20 is: 4,682.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,383.68 : 7,427.28 = 3,394.20 : x
  2. Step 2: Convert to fraction form
    5,383.68/7,427.28 = 3,394.20/x
  3. Step 3: Cross multiply
    5,383.68x = 7,427.28 × 3,394.20
  4. Step 4: Simplify right side
    5,383.68x = 25,209,673.78
  5. Step 5: Solve for x
    x = 25,209,673.78/5,383.68
  6. Step 6: Final answer
    x = 4,682.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.